What about going the other way and getting a 05+ super duty 60 so you already have 1.5" 35 spline outers as well as heavier tubes and even beefier knuckles?

I haven't seen those up close out of a truck. I know those are radius arm axles and the thought has crossed my mind to "update" my Excursion suspension to the new style. However do you or anyone else know if there is enough room on those axles to run them under leafs?